CN106077127B - A kind of production technology of copper magnesium alloy line - Google Patents

A kind of production technology of copper magnesium alloy line Download PDF

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Publication number
CN106077127B
CN106077127B CN201610630114.3A CN201610630114A CN106077127B CN 106077127 B CN106077127 B CN 106077127B CN 201610630114 A CN201610630114 A CN 201610630114A CN 106077127 B CN106077127 B CN 106077127B
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China
Prior art keywords
copper
magnesium
content
indium
diameter
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Expired - Fee Related
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CN201610630114.3A
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CN106077127A (en
Inventor
李子彬
李永运
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Dongguan Lijing precision metal products Co., Ltd.
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Dongguan Lijing Precision Metal Products Co Ltd
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Priority to CN201610630114.3A priority Critical patent/CN106077127B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/04Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
    • B21C37/045Manufacture of wire or bars with particular section or properties
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C9/00Alloys based on copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Conductive Materials (AREA)
  • Continuous Casting (AREA)

Abstract

The present invention relates to a kind of production technology of copper magnesium alloy line, comprise the following steps:(1)Using Cu-CATH-1 as raw material, it will be melted after Cu-CATH-1 pre-heating drying in smelting apparatus, copper bar drawn on traction link seat;(2)It is continuously extruded;(3)Drawing.The present invention relates to a kind of production technology of copper magnesium alloy line its flow is short, efficient, energy-conservation.

Description

A kind of production technology of copper magnesium alloy line
Technical field
The present invention relates to technical field of nonferrous metal processing, more particularly to a kind of production technology of copper magnesium alloy line.
Background technology
Aircraft antenna needs small volume, in light weight, intensity is high, can withstand up to hundreds of G overload and vibration, impact, Also want high temperature resistant and consider hot and cold, damp, wet, salt fog influence.Magnesium copper alloy antenna is one kind of aircraft antenna, typically by line Material uses after being coiled into twisted wire.Traditional copper magnesium line, which uses, above draws copper bar and the production of continuously elongated method, its technological process - continuously elongated-- continuously elongated-annealing of annealing that is continuous up-casting-continuously elongated.The technological process is more complicated, meanwhile, by It is as-cast structure in continuous up-casting, after follow-up machining deformation, its mechanical property still has shortcoming.
The content of the invention
For insufficient existing for existing production technology, the present invention devises a kind of production technology of copper magnesium alloy line.Utilize Not only properties are excellent for the copper magnesium alloy wire rod of the technique productions, and technological process is short, efficient, energy-conservation.
In order to realize foregoing invention purpose, present invention employs following technical scheme:
Continuous up-casting-continuously extruded-stretching
The technical scheme is that:
1. continuous up-casting
Using Cu-CATH-1 as raw material, will be melted after Cu-CATH-1 pre-heating drying in smelting apparatus, using wood Charcoal and graphite flakes covering copper liquid surface, using drawing copper bar on traction link seat.
It is that 0.72 ~ 0.75% ratio adds copper magnesium intermediate alloy into smelting apparatus according to content of magnesium.It is according to indium content 0.02 ~ 0.03% ratio adds copper and indium intermediate alloy into smelting apparatus.
The temperature of smelting furnace is 1180 DEG C ~ 1190 DEG C, is covered using the charcoal of drying, ensures the reducing atmosphere of smelting furnace; Charcoal granularity is 30mm ~ 50mm, cladding thickness 100mm ~ 150mm.The temperature of holding furnace is 1170 DEG C ~ 1180 DEG C, using graphite Scale covers, its cladding thickness 50mm ~ 60mm.
With copper bar is drawn on traction link seat, then copper bar enters take-up.Draw bar 500~590mm/min of speed, it is straight to draw bar Footpath Ф 20mm, 35 DEG C~40 DEG C of cooling cyclic water outlet temperature.
The copper bar of preparation:Copper+magnesium+indium content be more than 99.99%, oxygen content be less than 0.001%, content of magnesium be 0.72 ~ 0.75%, indium content is 0.02 ~ 0.03%, and resistivity is less than 0.03 Ω mm2/ m, tensile strength are more than 190MPa, and elongation percentage is big In 50%.
It is 2. continuously extruded
The copper bar prepared using step 1 prepares copper magnesium line base, continuous extruder rotating speed is as raw material using continuously extruded unit 7 ~ 10r/min, a diameter of 12.5mm of copper magnesium line base.
3. stretching
The copper magnesium line base of gained stretches the technology being combined with online annealing using multi-pass, and emulsion is used in drawing process Be lubricated and cool down, be first pulled to a diameter of 0.8~0.9mm greatly, then it is small be pulled to a diameter of 0.3~0.35mm, it is big draw during Using resistance internal heat type continuous annealing, the concentration of emulsion is 10%~15% in big drawing process, and the concentration of emulsion is in small drawing process 6%~8%;The voltage annealed in described big drawing process is 31 V~35V, and speed is 1100~1300m/min.
Using above-mentioned technical proposal, have the advantage that:
1. using Cu-CATH-1 plate as raw material, reasonably optimizing content of magnesium and indium content, content of magnesium are 0.72 ~ 0.75%, indium Content is 0.02 ~ 0.03%, and copper+magnesium+indium content is more than 99.99%, oxygen content and is less than 0.03 Ω less than 0.0010%, resistivity mm2/m。
2. it is combined using stretching technique with online annealing technology, there is provided the copper magnesium alloy line of excellent in mechanical performance, contracting Short technological process.Wherein tensile strength is more than 800MPa, elongation percentage is more than 1%.
3. flow of the present invention is short, efficient, energy-conservation.The present invention saves the passage of stretching compared with traditional handicraft, beneficial to effect Fruit is to save energy consumption more than 30%, and lumber recovery reaches more than 75%.
Embodiment
With reference to specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to This.
Embodiment 1
A kind of production technology of copper magnesium alloy line of the present embodiment 1 comprises the following steps:
Continuous up-casting-continuously extruded-stretching
Specific step is:
1. continuous up-casting
Using Cu-CATH-1 as raw material, will be melted after Cu-CATH-1 pre-heating drying in smelting apparatus, using wood Charcoal and graphite flakes covering copper liquid surface, using drawing copper bar on traction link seat.
It is that 0.72% ratio adds copper magnesium intermediate alloy into smelting apparatus according to content of magnesium.It is 0.02% ratio according to indium content Example adds copper and indium intermediate alloy into smelting apparatus.
The temperature of smelting furnace is 1180 DEG C, is covered using the charcoal of drying, ensures the reducing atmosphere of smelting furnace;Charcoal granularity For 30mm, cladding thickness 100mm;The temperature of holding furnace is 1170 DEG C, is covered using graphite flakes, its cladding thickness 50mm.
With copper bar is drawn on traction link seat, then copper bar enters take-up.Draw bar speed 500mm/min, draw shank diameter Ф 20mm, 35 DEG C of cooling cyclic water outlet temperature.
The copper bar of preparation:Copper+magnesium+indium content is more than 99.99%, oxygen content 0.0005%, content of magnesium 0.72%, indium content For 0.02%, the Ω mm of resistivity 0.0292/ m, tensile strength 210MPa, elongation percentage 52%.
It is 2. continuously extruded
The copper bar prepared using step 1 prepares copper magnesium line base as raw material, using continuously extruded unit, and continuous extruder rotating speed is 10r/min, a diameter of 12.5mm of copper magnesium line base.
3. stretching
The copper magnesium line base of gained stretches the technology being combined with online annealing using multi-pass, and emulsion is used in drawing process Be lubricated and cool down, be first pulled to a diameter of 0.9mm greatly, then it is small be pulled to a diameter of 0.35mm, it is big draw during using in resistance Hot type continuous annealing, the concentration for drawing emulsion in process greatly are 10%, and the concentration of emulsion is 8% in small drawing process;Described big drawing work The voltage annealed in sequence is 32V, speed 1200m/min.
Performance test and analysis
Performance test is carried out to embodiment 1 by technology well known in the art, and test result analyzed, draw as Draw a conclusion:
Content of magnesium is 0.72%, indium content 0.02%, copper+magnesium+indium content are more than 99.99%, oxygen content 0.0005%, resistance The Ω mm of rate 0.0292/ m, wherein tensile strength are more than 800MPa, elongation percentage is more than 1%.
Above-described embodiment is only used for illustrating the inventive concept of the present invention, rather than the restriction to rights protection of the present invention, All changes for carrying out unsubstantiality to the present invention using this design, all should fall into protection scope of the present invention.

Claims (1)

1. a kind of production technology of copper magnesium alloy line, it is characterised in that comprise the following steps:
(1)Continuous up-casting:Using Cu-CATH-1 as raw material, will be melted after Cu-CATH-1 pre-heating drying in smelting apparatus Change, copper liquid surface is covered using charcoal and graphite flakes, using drawing copper bar on traction link seat;In percentage by weight, with magnesium Content be 0.72 ~ 0.75% ratio copper magnesium intermediate alloy is added into smelting apparatus, using indium content as 0.02 ~ 0.03% ratio Copper and indium intermediate alloy is added into smelting apparatus;The temperature of smelting furnace is 1180 DEG C ~ 1190 DEG C, is covered using the charcoal of drying, Ensure the reducing atmosphere of smelting furnace;Charcoal granularity is 30mm ~ 50mm, cladding thickness 100mm ~ 150mm, and the temperature of holding furnace is 1170 DEG C ~ 1180 DEG C, covered using graphite flakes, its cladding thickness 50mm ~ 60mm;On draw 500~590mm/ of speed of copper bar Min, above draw the diameter Ф 20mm of copper bar, 35 DEG C~40 DEG C of cooling cyclic water outlet temperature;Draw copper bar copper+magnesium+indium on preparing to contain Amount is more than 99.99%, and oxygen content is less than 0.001%, and content of magnesium is 0.72 ~ 0.75%, and indium content is 0.02 ~ 0.03%, and resistivity is small In 0.03 Ω mm2/ m, tensile strength are more than 190MPa, and elongation percentage is more than 50%;
(2)It is continuously extruded:With step(1)It is raw material to draw copper bar on preparing, and copper magnesium line base is prepared using continuously extruded unit;Even Continuous extruder rotating speed is 7 ~ 10r/min, a diameter of 12 .5mm of copper magnesium line base;
(3)Stretching:Use multi-pass stretching will be with step with the technology that online annealing is combined(2)Copper magnesium line base is prepared to be drawn Stretch;Be lubricated and cool down using emulsion in drawing process, first be pulled to a diameter of 0.8~0.9mm greatly, then it is small be pulled to it is a diameter of 0.3~0.35mm, resistance internal heat type continuous annealing being used during big drawing, the concentration of emulsion is 10%~15% in big drawing process, The concentration of emulsion is 6%~8% in small drawing process;The voltage annealed in described big drawing process is 31 V~35V, speed 1100 ~1300m/min;
The copper magnesium alloy line prepared using above-mentioned production technology, a diameter of 0.3~0.35mm, content of magnesium are 0.72~0.75%, indium Content is 0.02~0.03%, and copper+magnesium+indium content is more than 99.99%, oxygen content and is less than 0.03 Ω less than 0.0010%, resistivity mm2/ m, tensile strength are more than 800MPa, elongation percentage is more than 1%.
CN201610630114.3A 2016-08-04 2016-08-04 A kind of production technology of copper magnesium alloy line Expired - Fee Related CN106077127B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109127745A (en) * 2018-08-25 2019-01-04 浙江人民线缆制造有限公司 Copper bar drawing process
CN109290389A (en) * 2018-11-01 2019-02-01 西安西电光电缆有限责任公司 A kind of preparation method of copper magnesium alloy contact wire
CN110373569A (en) * 2019-07-25 2019-10-25 信承瑞技术有限公司 A kind of harness copper magnesium alloy base material and its production technology
CN110666173B (en) * 2019-09-30 2020-09-11 北京石墨烯技术研究院有限公司 Graphene copper-magnesium alloy contact wire and preparation method thereof
CN115213586A (en) * 2022-08-22 2022-10-21 江苏亨通电力智网科技有限公司 Wear-resistant and corrosion-resistant manganese-aluminum bronze welding wire and preparation method thereof

Citations (4)

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Publication number Priority date Publication date Assignee Title
CN101707084A (en) * 2009-11-09 2010-05-12 江阴市电工合金有限公司 Manufacturing method for copper-magnesium alloy stranded wire
CN101710505A (en) * 2009-12-14 2010-05-19 中铁建电气化局集团有限公司 Method for preparing copper magnesium alloy contact wire
CN104060120A (en) * 2014-07-03 2014-09-24 兰宝琴 Method for preparing high-strength copper alloy wire rods
CN105097115A (en) * 2015-07-13 2015-11-25 江苏亨通线缆科技有限公司 High-strength copper alloy service cable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110125411A (en) * 2010-05-13 2011-11-21 엘에스전선 주식회사 Copper alloy wire for electric car line and fabricating method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101707084A (en) * 2009-11-09 2010-05-12 江阴市电工合金有限公司 Manufacturing method for copper-magnesium alloy stranded wire
CN101710505A (en) * 2009-12-14 2010-05-19 中铁建电气化局集团有限公司 Method for preparing copper magnesium alloy contact wire
CN104060120A (en) * 2014-07-03 2014-09-24 兰宝琴 Method for preparing high-strength copper alloy wire rods
CN105097115A (en) * 2015-07-13 2015-11-25 江苏亨通线缆科技有限公司 High-strength copper alloy service cable

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Inventor after: Li Zibin

Inventor after: Li Yongyun

Inventor before: Xu Gaolei

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Effective date of registration: 20180118

Address after: No. 19, Tanglong West Road, Tianxin community, Tangxia Town, Dongguan, Guangdong

Applicant after: Dongguan Lijing precision metal products Co., Ltd.

Address before: 312000 Zhejiang province Shaoxing City Street No. 153

Applicant before: Xu Gaolei

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